Exoplanets 101 | National Geographic SUBSCRIBE: https://youtu.be/4JLjF89hz34 : https://youtube.com/ashbgame : Exoplanets challenge the notion that we are alone in the universe. Learn what types of exoplanets exist, the methods scientists employ to find them, and how many worlds might exist in the Milky Way Galaxy.
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Exoplanets 101 | National Geographic